.post-detail-header {
  width: 100%;
  overflow: hidden;
  height: 450px;
  margin-top: -64px;
  position: relative;
  background-color: $color-primary;
  background-size: cover;
  background-position: center center;
  color: #fff;
  font-weight: $color-post-header-title-font-weight;
  font-family: '楷体';
}
.post-detail-header .post-detail-header-mask {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: #000;
  opacity: 0.4;
  z-index: 1;
  transition: all 0.2s;
}
.post-detail-header .title-box {
  display: block;
  z-index: 2;
}
.post-detail-header .title {
  font-size: 2rem;
  line-height: 1.5;
  width: 100%;
}
.post-detail-header .typed-cursor {
  font-size: 2rem;
  color: $color-post-header-title;
}
.post-detail-header .post-detail-header_info-box {
  text-align: center;
  position: absolute;
  bottom: 50%;
  left: 50%;
  width: 85%;
  transform: translate(-50%, 50%);
  z-index: 2;
}
.post-detail-header .post-detail-header_info-box .post-detail-header_categories a {
  color: $color-post-header-title;
}
.post-detail-header .post-detail-header_info-box .post-detail-header_categories a:hover {
  text-decoration: underline;
  color: $color-link;
}
.post-detail-header .post-detail-header_wordcount {
  z-index: 2;
  margin-top: 10px;
  flex-wrap: wrap;
}
@media (max-width: 551px) {
  .post-detail-header {
    height: 360px;
    text-align: left;
    line-height: 2;
  }
  .post-detail-header .title {
    font-size: 2rem;
  }
  .post-detail-header .post-detail-header_info-box {
    left: 0;
    bottom: 2rem;
    width: 100%;
    transform: none;
    text-align: left;
    padding: 0 1.1rem;
    box-sizing: border-box;
  }
  .post-detail-header .post-detail-header_wordcount,
  .post-detail-header .post-detail-header_categories {
    display: inline !important;
  }
}